NeXT Cube

Long before the Power Mac G4
Cube, Steve Jobs created the NeXT Cube, a 12" black box with
more power than any Macintosh then available. The NeXT Cube was
innovative in many ways: It used Postscript both to display images
on its four-shade grayscale monitor and to print them out on its
400 dpi laser printer. The Cube incorporates a Motorola 56001
digital signal processor (DSP) to process graphics in real time.

Like OS X, which is descended from it, the NeXTstep operating
system was firmly rooted in Unix.

One almost prescient feature: like the 1998 iMac, the 1988 NeXT
Cube had no floppy drive.